TY - BOOK AU - Murphy,Stuart J. AU - Ehlert,Lois TI - A pair of socks T2 - MathStart SN - 0064467031 AV - BF293 .M87 1996 U1 - 152.14/23 21 PY - 1996/// CY - New York PB - HarperCollins Publishers KW - Pattern perception KW - Juvenile literature N1 - "Level 1." N2 - Introduces pattern recognition as a sock searches the house for its lost mate ER -